Question

The cells of many bacterial species have the ability to differentiate (sometimes permanently) for purposes that enhance species survival in various ways. Such differentiation is typically accompanied by major changes in gene expression or cell structure. Which of the following represents a differentiated cell type? There are at least two correct answers. Choose one or more: A. Anabaena heterocyst B. Bacillus endospore C. flagellated Pseudomonas D. Caulobacter with holdfast E. Staphylococcus cluster F. Streptomyces aerial hyphae G. E. coli siderophore

Answer 1

Answer:

The bacteria that represents differentiated cell type is  called Bacillus endospore

Explanation:

This bacteria have a special ability to live long in dormant form as their endospore  remain viable for thousand of year.

They form endospore through a process called as Sporulation.

This sporulation requires many steps-

• Bacterial chromosome replicates to form two daughter chromosome.
• There are 2 sigma factors called Sigma A and Sigma H which regulates transcription of genes that initiates two different developmental programe. This process takes place in two daughter chromosome.
• Cell compartmentalization form forespore and motherspore.
• Mother spore regulates maturation of endospore and it's own DNA disintegrates.